Resilient wheel.



.0. A. EGKRE.

RESILIENT WHEEL APPLICATION FILED MAY 19, 191s.

1 1 1 0,427, Pzitented Sept. 15, 1914.,

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0. A. EGKRE.

RESILIENT WHEEL APPLICATION FILED MAY 19, 1913.

Patented Sept. 15,1914.

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OLOF A. ECKRE, QF MINNEAPOLIS, MINNESOTA.

BESILIENT WHEEL.

To all whom it may concern:

Be it known that I, QLor A. Eoxnn, re-

siding at Minneapolis, in the county of,

Hennepin and State of Minnesota, have in vented certain new and usefulImprovements in Spring Hubs and Axles, of which the following is aspecification.

This invention, which in its general nature relates to wheels, morespecifically has reference to improvements in spring mounted. skeins orspindles for axles.

With other objects in view, that will hereinafter appear, my inventionconsists of the peculiar combination and novel arrangement of the partshereinafter specifically pointed out in the appended claims andillustrated in the accompanying drawings, in which:

Figure 1 is a front view of a portion of a vehicle wheel with myimproved improvements applied. Fig. 2 is a vertical longitudinal section thereof taken on the line 2-2 on Fig. l

l, and drawn on an enlarged scale. Fig. 3 is a cross section of the hubportion taken on the line 83 on Fig. 2. Fig. 4 is a detail perspectiveview of one of the slotted end members having the annular cone surfacesand the bottom or rest flange for the bumper springs. Fig. 5 is aperspective view of the sleeve that slidably fits on the axle and hasthe bearings and guides for the upper ends of the bumper springs. Fig. 6is a perspective View of oneend of the hub, and particularly illustratesthe corelation of the slide plate carried on the axle end and theflanged guide devices therefor. Fig. 7 is a detail view of partshereinafter explained. Fig. 8 is a detail section on the line 88 of Fig.2.

In the practical application of my invention, I use an axle 1,preferably square in cross section, which runs entirely through thespring hub and is supported on the cushion or bumper springs containedwithin the hub, and arranged in the manner presently described.

22 designate an inner and an outer elongated steel end plate, the outerone of which fits onto the outer threaded end of the axle, and is heldfrom working off the axle by the jam nut 3 and the lock pin 30. Theinner plate 2 is fixedly held on the axle to turn therewith as clearlyshown in Fig. 2. The plates 22 serve to keep the hub on the axle andalso to keep the dust and dirt from working into the interior of thehub, their Specification of Letters Patent.

Application filed May 19, 1913.

Patented Sept. 15, 1914.

Serial No. 768,563.

opposite edges being beveled as shown to provide for a close andaccurate fitting in the guides 13 provided therefor, as is best shown inFigs. 1 and 6.

S designates the hub body which is in the nature of an annular rimhaving a centrally disposed peripheral groove 4 for receiving the wheelspokes 40, whose hub ends are clamped in the said groove by the crossbolts 4-1, as shown.

55 designate a pair of disk-like end members, each of which has anelongated slot 50 through which the axle passes and each, at the base ofthe slot 50, has an inwardly and laterally extended flange 51 the upperface of which has a central elongated rib 52 that extends transverselyoff and nearly the full length of the said flange and a pair of shorterribs one at each side of the rib 52, the purpose of which will presentlyappear. The flange 51 of one of the members 5 has dowels 54C forengaging sockets 55 in the flange 51 of the opposing member 5 to therebylock the two members 55 together. The periphery of each member 5 has aconical tread surface for receiving the conical roller bearings 9mounted in annular grooves 90 on the internal face of the hub rim 8.

7 designates a sleeve-like hanger that is endwise slidable onto the axleand is of such a length that it snugly fits between the slot-- ted endmembers 5 when the several parts are assembled as best shown in Fig. 2.Sleeve 7, the detailed construction of which is shown in Fig. 5,includes lateral flanges 70 70 having a pair of rectangular pendent ribs71 and the sleeve portion proper having a pair of elongated ribs 7272 onthe under face, the latter ribs 7 2 forming mates for central ribs 52 onthe flanges 51 of the slotted members 5; the ribs 71 forming mates forthe ribs 53 on the said members 5. By reason of forming the sleeve-likemember 7 and the members 5 with the ribs arranged as aforesaid, ampleprovision is made for mounting the buffer springs that take up the loadon the axle. I prefer to use six buffer springs, two central ones 6, theupper and lower ends of which engage the upper ribs 72 and the lowerribs 52, and two sets of coiled springs 19 and 20, one pair at each sideof the central springs 6, the said side springs being held in place byreason of their opposite ends seating over the upper ribs 71 and thelower ribs 53.

11 designates a sprocket rim that is removably mounted but fixedly heldon the hub rim by screw bolts 12 (see Fig. 2).

1a designate band rings screwed to the hub rim over the openings throughwhich the cone bearing roller pins 10 are inserted.

24: designates the brake band receiving surface of the hub rim, overwhich the band 25 is mounted, the latter being applied in any well knownmanner, for example, as indicated by Fig. 8, which shows a bracket 15screwed to one of the slotted end members 5 and extended laterally toform a hearing for the bell crank lever 17 to which the ends of the band25 are secured as shown.

18 designates a pull-back spring for holding the brake band normallyloose and 27 the pull arm that actuates the arm 17.

21 designate cross bolts that hold the two end members 5 together and 28designate wire looks that pass through the heads of the several bolts 21to hold them from turning loose, similar wire locks 29 being used in theheads of the bolts 26 that lock the guides 18 to the slotted members 5.E,

35 designates a lubricating orifice in the hub rim.

In applying my spring hubs to motor driven vehicle wheels the hubconstruction for the front and rear wheels is the same, with theexception that the front wheel end plates 1 are connected to thestringing knuckle ll that connect with the steering rods 42 as isdiagrammatically indicated in Fig. 7.

From the foregoing description taken in connection with the drawings thecomplete construction, the manner in which the several parts cooperate,and the advantages of my invention will be readily apparent to thoseskilled in the art to which it relates.

It should be stated that the several parts can be quickly assembledsince two end members 5 together with the sleeve 7, and the severalsprings can be bodily slipped over the axle before the outer plate 5 andits guide flanges are attached to the axle and to the outer member 5 andshoved endwise into the hub ring, it being understood that all shocksincident in driving the wheel are absorbed by the springs, as they,together with the end members 5 are held stationary while the hub ringturns on the said end members 5, the axle with the end plates 1 ridingfreely up and down in the slots of the end mem- Copies of this patentmay be obtained for i bers, under the compression and expansionconditions of the buffer springs.

W hat I claim is:

1. In a hub and axle construction, the combination with the axle, ofvertically elongated guide plates rigidly secured to the axle and spacedapart, a pair of bearing disks having vertically elongated slots andmounted on the axle in contact, one with each of said guide plates, saidplates and the respective disks having tongue and groove connections ahub having bearing surfaces cooperating with said disks and rotatablethereon, and buffer springs located between the axle and said disks andcontinuously tending to move said disks downwardly with respect to theaxle.

2. An axle, a pair of uide plates rigidly secured to the axle and spacedapart, bearing disks having a tongue and groove connection with saidguide plates and provided with longitudinal slots to receive said axle,said bearing disks having peripheral bearing surfaces, and a hub mountedbetween said guide plates and having bearing surfaces cooperating withsaid bearing disks, said bearing disks having inwardly projectingflanges connected together, a flanged sleeve mounted on the axle, andbufler springs located between said flanges and said flanged sleeve.

3, An axle, a pair of guide plates rigidly secured to the axle andspaced apart, hearing disks having a tongue and groove connection withsaid guide plates and provided with longitudinal slots to receive saidaxle, said bearing disks having peripheral hearing surfaces, and a hubmounted between said guide plates and having bearing surfacescooperating with said peripheral bearing surfaces, said bearing diskshaving inwardly projecting flanges connected together a flanged sleevemounted on the axle, and buffer springs located between said flanges andsaid flanged sleeve, said guide plates forming closures for the outsidesof the elongated slots of said bearing disks whereby the space betweensaid guide plates within said hub may be kept filled with a suitablelubricant. I

OLOF A. ECKR-E.

YVitnesses M. INenBnIc'rsnN, ANDREW Fawon'rr.

ve cents each. by addressing the Commissioner of IPatents,

Washington, 1 G.

